[GRASS-user] r.sim.water and Spearfish60 sample data

GRASS GRASS user
1

Hello,
I’m Roberto, a student of computer science. I’m using GRASS GIS 6.2.3 and I need to use the r.sim.water module with some sample data (rainfall excess raster data file, infiltration excess raster file, Manning n raster file)

Can I use this module with the spearfish data I downloaded from the Grass Site? Which raster files in Spearfish are useful for r.sim.water?

Thank you,
Roberto

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2

On Feb 8, 2008 11:22 AM, roberto caselli <roberto.caselli@yahoo.it> wrote:

Hello,
I'm Roberto, a student of computer science. I'm using GRASS GIS 6.2.3 and I
need to use the r.sim.water module with some sample data (rainfall excess
raster data file, infiltration excess raster file, Manning n raster file)

Can I use this module with the spearfish data I downloaded from the Grass
Site? Which raster files in Spearfish are useful for r.sim.water?

In the source code is a script to test it. You can download it also
from here:

http://trac.osgeo.org/grass/browser/grass/trunk/raster/simwe/r.sim.water/spearfish.sh

(see page bottom for plain text download)

Markus

3

Thank you for the support! I tested that script on this environment (notebook Acer Travelmate, Windows Vista Basic, Grass 6.2.3 and Cygwin downloaded here: http://geni.ath.cx/grass.html#toc5).
The execution of that script crashed with this message:
"Running MAY 10 version
./spearfish.sh : line 32 : 1668 Segmentation Fault (core dumped) "

What does it mean?

I also tryed the r.sim.water on Grass 6.2.2 on Linux Xubuntu 7.10 but I received this message from the bash: KILLED.

I hope you can help me to fix these problems.
Thank you guys,
Roberto

Markus Neteler neteler@osgeo.org ha scritto:

On Feb 8, 2008 11:22 AM, roberto caselli

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4

Can you please post the output of

g.region -p?

Posibly your resolution is too high and memory doesn't
suffice...

Markus

On Feb 11, 2008 1:10 PM, roberto caselli <roberto.caselli@yahoo.it> wrote:

Thank you for the support! I tested that script on this environment
(notebook Acer Travelmate, Windows Vista Basic, Grass 6.2.3 and Cygwin
downloaded here: http://geni.ath.cx/grass.html#toc5).
The execution of that script crashed with this message:
"Running MAY 10 version
./spearfish.sh : line 32 : 1668 Segmentation Fault (core dumped) "

What does it mean?

I also tryed the r.sim.water on Grass 6.2.2 on Linux Xubuntu 7.10 but I
received this message from the bash: KILLED.

I hope you can help me to fix these problems.
Thank you guys,
Roberto

Markus Neteler <neteler@osgeo.org> ha scritto:

On Feb 8, 2008 11:22 AM, roberto caselli wrote:
> Hello,
> I'm Roberto, a student of computer science. I'm using GRASS GIS 6.2.3 and
I
> need to use the r.sim.water module with some sample data (rainfall excess
> raster data file, infiltration excess raster file, Manning n raster file)
>
> Can I use this module with the spearfish data I downloaded from the Grass
> Site? Which raster files in Spearfish are useful for r.sim.water?

In the source code is a script to test it. You can download it also
from here:

http://trac.osgeo.org/grass/browser/grass/trunk/raster/simwe/r.sim.water/spearfish.sh

(see page bottom for plain text download)

Markus

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http://www.grassbook.org/

5 
``projection: 1(UTM)``
``zone: 13``
``datum: nad27``
``ellipsoid: clark66``
``north: 4928000``
``south: 4914020``
``west: 590010``
``east: 609000``
``nsres: 30``
``ewres: 30``
``rows: 466``
``cols: 633``
``cells: 294978``

``Date: Mon, 11 Feb 2008 13:48:23 +0100``
``From: "Markus Neteler" <neteler@osgeo.org>``
``Subject: Re: [GRASS-user] r.sim.water and Spearfish60 sample data``
``To: "GRASS user list" <grass-user@lists.osgeo.org>``
``Message-ID:``
`` <86782b610802110448i77be3155h468b40957960eda@mail.gmail.com>``
``Content-Type: text/plain; charset=ISO-8859-1``

``Can you please post the output of``

``g.region -p?``

``Posibly your resolution is too high and memory doesn't``
``suffice...``

``Markus``

``On Feb 11, 2008 1:10 PM, roberto caselli <roberto.caselli@yahoo.it>``
`` wrote:``
``> Thank you for the support! I tested that script on this environment``
``> (notebook Acer Travelmate, Windows Vista Basic, Grass 6.2.3 and``
`` Cygwin``
``> downloaded here: [http://geni.ath.cx/grass.html#toc5](http://geni.ath.cx/grass.html#toc5)).``
``>
 The execution of that script crashed with this message:``
``> "Running MAY 10  version``
``>  ./spearfish.sh : line 32 : 1668 Segmentation Fault (core dumped) "``
``>``
``>  What does it mean?``
``>``
``> I also tryed the r.sim.water on Grass 6.2.2 on Linux Xubuntu 7.10 but``
`` I``
``> received this message from the bash: KILLED.``
``>``
``> I hope you can help me to fix these problems.``
``> Thank you guys,``
``> Roberto``
``>``
``>``
``> Markus Neteler <neteler@osgeo.org> ha scritto:``
``>``
``>  On Feb 8, 2008 11:22 AM, roberto caselli wrote:``
``> > Hello,``
``> > I'm Roberto, a student of computer science. I'm using GRASS GIS``
`` 6.2.3 and``
``> I``
``> > need to use the r.sim.water module with some sample data (rainfall``
`` excess``
``> > raster data file,
 infiltration excess raster file, Manning n raster``
`` file)``
``> >``
``> > Can I use this module with the spearfish data I downloaded from the``
`` Grass``
``> > Site? Which raster files in Spearfish are useful for r.sim.water?``
``>``
``> In the source code is a script to test it. You can download it also``
``> from here:``
``>``
``>``
``>``
`` [http://trac.osgeo.org/grass/browser/grass/trunk/raster/simwe/r.sim.water/spearfish.sh](http://trac.osgeo.org/grass/browser/grass/trunk/raster/simwe/r.sim.water/spearfish.sh)``
``>``
``> (see page bottom for plain text download)``
``>``
``> Markus``
``>``
``>``
``>``
``>  ________________________________``
``>``
``> ________________________________``
``> L'email della prossima generazione? Puoi averla con la nuova Yahoo!``
`` Mail``
``> _______________________________________________``
``> grass-user mailing list``
``> grass-user@lists.osgeo.org``
``> [http://lists.osgeo.org/mailman/listinfo/grass-user](http://lists.osgeo.org/mailman/listinfo/grass-user)``
``>``
``>``

``-- ``
``Open Source Geospatial Foundation``
``[http://www.osgeo.org/](http://www.osgeo.org/)``
``[http://www.grassbook.org/](http://www.grassbook.org/)``

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6

Hi,

I made a test, it works (Linux box):

GRASS 6.3.svn (spearfish60):~/grass63 > sh raster/simwe/r.sim.water/spearfish.sh
projection: 1 (UTM)
...
cells: 294978
Preparing input maps...
Percent complete:
100%
Creating support files...
Elevation products for mapset [neteler] in [spearfish60]
E-W SLOPE [elevation.dem_dx] COMPLETE
N-S SLOPE [elevation.dem_dy] COMPLETE
100%
100%
100%
r.sim.water --o elevin=elevation.dem dxin=elevation.dem_dx
dyin=elevation.dem_dy rain=elevation.dem_rain
manin=elevation.dem_manin infil=elevation.dem_infil
depth=elevation.dem_depth disch=elevation.dem_disch
err=elevation.dem_err
Running MAY 10 version

zmin,zmax 1066.000000 1840.000000
simean,vmean,chmean,deltap,deltaw 0.000001 8.428620 19.670823 0.889825
1000000000000.000000
MITER, timec 0 4.000000
100%
min=0.000155
max=0.316380
min=0.000000
max=25.006544
min=0.000155
max=0.316380
Written:
Output water depth raster file: elevation.dem_depth
Output water discharge raster file: elevation.dem_disch
Output simulation error raster file: elevation.dem_err

GRASS 6.3.svn (spearfish60):~/grass63 >

Since you used GRASS6.2.3, maybe give 6.3 a try?
Possibly some bugfixes have not been backported.

Markus

7

Markus Neteler wrote:

I made a test, it works (Linux box):

GRASS 6.3.svn (spearfish60):~/grass63 > sh
raster/simwe/r.sim.water/spearfish.sh
projection: 1 (UTM)
...
cells: 294978
Preparing input maps...
Percent complete:
100%
Creating support files...
Elevation products for mapset [neteler] in [spearfish60]
E-W SLOPE [elevation.dem_dx] COMPLETE
N-S SLOPE [elevation.dem_dy] COMPLETE
100%
100%
100%
r.sim.water --o elevin=elevation.dem dxin=elevation.dem_dx
dyin=elevation.dem_dy rain=elevation.dem_rain
manin=elevation.dem_manin infil=elevation.dem_infil
depth=elevation.dem_depth disch=elevation.dem_disch
err=elevation.dem_err
Running MAY 10 version

zmin,zmax 1066.000000 1840.000000
simean,vmean,chmean,deltap,deltaw 0.000001 8.428620 19.670823
0.889825
1000000000000.000000
MITER, timec 0 4.000000
100%
min=0.000155
max=0.316380
min=0.000000
max=25.006544
min=0.000155
max=0.316380
Written:
Output water depth raster file: elevation.dem_depth
Output water discharge raster file: elevation.dem_disch
Output simulation error raster file: elevation.dem_err

GRASS 6.3.svn (spearfish60):~/grass63 >

Since you used GRASS6.2.3, maybe give 6.3 a try?
Possibly some bugfixes have not been backported.

I just tried the raster/simwe/r.sim.water/spearfish.sh script from
GRASS 6.2.3 [in 6.2.3], and it worked ok (Linux). It took an hour+ to
finish, but it got there.

The "segfault on line 32" refers to the line in the script which
r.sim.water is called.

I notice it used a lot of memory, here is what top reported while the
process was running:
   VIRT RES SHR
  1115m 290m 5756

Maybe that is the problem?

the script in 6.2.3 sets the region to match elevation.10m, while the
one in 6.3svn uses elevation.dem (30m). So the 6.3 script will use much
less memory and be faster.

Hamish

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